I'm currently in the process to GM Rise of Runelords (players are lvl 2). I've thought recently about reporting it as campaign mode for PFS. It's homebrew, uses Unchained extensively, and a couple of home rules (not very relevant, such as some devils being demons and the other way around)
But I'm doing a mash up with Shattered Star. I'm including parts of SS in RoRL. So, my questions are:
1) Can I still report RoRL if I make some changes to it (both "cosmetic" changes such as Nualia being Antipaladin instead of fighter/cleric, and "substantial" changes such as adding an enterely new Oni enemy to Thisteltop to cater one of my player's background)?
2) Can I report "parts" of Shattered Star? For example, if we play book II of Shattered Star (which I plan to), can I report it?
3) If I can't... can I still report RoRL if I played a book of another AP in the middle of it?